Status Bass. Can't remember the model, but still sold on the Status site, I believe, along with Mark King "artist" models. The song is "Overtime" off the album, Guaranteed. Nice basses!
It's a Status Matrix. Mark used the 5 string for a couple of songs on the Guaranteed tour, but other than that, you'll be hard pressed to find any evidence of him ever having used a 5 string live. He apparently prefers the easy playability of 4 strings.
It was a Status Matrix Empathy 5 He used a MM S'Ray 5 in the studio for a lot of stuff that would go below low D (which he tuned his E string to). He's quoted someplace that he thought MM basses were some of the best recorded. Check this page out for all his bass info: http://www.level42.com/bassography.asp Everything from Status to Moon to MM to Alembic to Fender with a Wal & Zon thrown in for fun!!!!